medicinean ectopia is a displacement or malposition of an organ of the body. Most ectopias are congenital but some may happen later in life.
Ectopia lentisis the displacement of the crystalline lens of the eye
Ectopia cordisis the displacement of the heart outside the body during fetal development
Renal ectopiaoccurs when both kidneys occur on the same side of the body
Ectopic pregnancyoccurs when the fertilized egg implants anywhere other than the uterine wall
Cardiac ectopyoccurs when electrical signals for a heartbeat originate in the wrong part of the heart muscle.
molecular biologythe term ectopic is used for at least three purposes:
* ectopic recombination refers to recombination between sites, usually containing identical or similar sequences, at different locations in the genome, leading to deletions, insertions, or chromosomal crossovers
* a gene is ectopically expressed when it is expressed in an abnormal place.
transgenicexperiments, ectopic integrationindicates the insertion of the transgene at a site other than its natural chromosomal locus
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